Python vulnerabilities

Releases

• Ubuntu 14.04 ESM
• Ubuntu 12.04

Packages

• python2.7 - An interactive high-level object-oriented language
• python3.4 - An interactive high-level object-oriented language

Details

USN-4127-1 fixed several vulnerabilities in Python. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that Python incorrectly handled certain pickle files. An
attacker could possibly use this issue to consume memory, leading to a
denial of service. This issue only affected Ubuntu 14.04 ESM. (CVE-2018-20406)

It was discovered that Python incorrectly validated the domain when
handling cookies. An attacker could possibly trick Python into sending
cookies to the wrong domain. (CVE-2018-20852)

Jonathan Birch and Panayiotis Panayiotou discovered that Python incorrectly
handled Unicode encoding during NFKC normalization. An attacker could
possibly use this issue to obtain sensitive information. (CVE-2019-9636,
CVE-2019-10160)

Colin Read and Nicolas Edet discovered that Python incorrectly handled
parsing certain X509 certificates. An attacker could possibly use this
issue to cause Python to crash, resulting in a denial of service. This
issue only affected Ubuntu 14.04 ESM. (CVE-2019-5010)

It was discovered that Python incorrectly handled certain urls. A remote
attacker could possibly use this issue to perform CRLF injection attacks.
(CVE-2019-9740, CVE-2019-9947)

Sihoon Lee discovered that Python incorrectly handled the local_file:
scheme. A remote attacker could possibly use this issue to bypass blocklist
meschanisms. (CVE-2019-9948)